Location: The rifle range, or archery range or behind the computer in Alaska

Posts: 3,807

Re: New Ballistics Program From Berger Bullets

Its a good looking program. It is simple to use. It is within 1.5" of my program at 1K.

Thanks!

M

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Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.

I am glad to see that Berger is making a Ballistic Program now. Thank you.
I didn't see any spot to input altitude though? I also didn't see the BC change when I changed caliber and weight?

I've been using Berger Bullets since the early 90's and am very happy with them. However, I've got a few questions about the G7 BC's.

I see that they're lower numbers than the G1.

If we put in the lower number into our other Ballistic Software (the newest Sierra or NF programs as an example) I am assuming that the outcome will be false because the programs were not designed to calculate the G7? Am I correct in that assumption?

Don't the Ballistic Programs have to be "set up" for G7 before it can effectively be used?

I am glad to see that Berger is making a Ballistic Program now. Thank you.
I didn't see any spot to input altitude though?

The effects of altitude are captured in the Air Pressure input. If you hold the mouse pointer over the word 'Pressure' on the program, a table will pop-up that tabulates the air pressure at altitude. You can pick the pressure that corresponds with your altitude. This was done intentionally because altitude and pressure effects are commonly misunderstood and miss-applied in ballistics programs. This is the best way I could think of to handle it.

Quote:

I also didn't see the BC change when I changed caliber and weight?

The caliber, weight, and BC are all independent inputs. You have to input all three. The program shows you the form factor of the bullet which results from the above 3 properties. A G7 form factor less than .98 is pretty good (low drag profile), greater than 1.1 is pretty bad.

Quote:

I've been using Berger Bullets since the early 90's and am very happy with them. However, I've got a few questions about the G7 BC's.

I see that they're lower numbers than the G1.

If we put in the lower number into our other Ballistic Software (the newest Sierra or NF programs as an example) I am assuming that the outcome will be false because the programs were not designed to calculate the G7? Am I correct in that assumption?

Don't the Ballistic Programs have to be "set up" for G7 before it can effectively be used?